Anybody ever built a B20 stroker? I'm looking to get a new car soon, and up until recently I was going to get something like a 5.0 liter Mustang or a LT1/LS1 F-body. Due to insurance reasons, however, there's no way I'd be able to keep either of these on the road (just got 2 tickets for Unsafe Start/Improper U-turn doing donuts in a friends 328i). So now I'm looking to get a Civic hatchback, probably an Hx or Cx (doesn't get much cheaper to insure than that) and dropping in a fully built naturally aspirated B series. Just wanted to know if anyone had ever stroked a B20 and what rod length did you use as well as where did you get the crank/rods for it? I'm also considering throwing a VTEC head on it while I'm building it.

A B20 block is pretty much a stroked version of the B18. I think its just a larger bore or something like that which nets the extra .2 liter.

If you want a quick motor...build a turbo B20 with like a b16 or GSR head. Just dont rev it too high.

Stroking a motor involves using a shorter rod length and increasing the length of the crankshaft throws so that the piston travels farther, increasing the displacement. I realize that to have a larger displacement on a B-series (2.0 vs. 1.8), the cylinder bore would have to be larger, but I'm looking to see if anyone has stroked a B20. I was thinking about going with a turbocharged setup for a while, but I've decided to stay naturally aspirated for now for simplicity.

ive never heard of anyone stroking a 2.0 and im not sure how the all motor b20 performs. Lots of torque...

Yeah, basically what I'm looking to build is a B-series to drop in a Civic hatchback that'll put well over 200 ft-lbs to wheels throughout much of the powerband, naturally aspirated on 93 octane gas. It might take a lot more time and effort than going with a supercharger or a turbocharger, but thats not what I'm looking to do.

yea naturally aspirated is more challenging in my opinion than just bolting on a turbo and goin...i think its a lot more fun too.

Yeah, I've seen some kits that have it end up with like a 2.2 liter displacement, which is pretty sick and most likely makes a lot of torque.

Thats a good question actually. I dont know if they have kits for it but i think you can get 84.5 mm sleeves which makes it a 2.2.

crower makes 2.2 liter stroker kit. the last time i checked i think its a little over $2000. i've seen stroked b16 to 1.8 liter and it ran great, but i don't know about a 2.2 liter tho.

The stroker kit for the b18b1 will work in the b20,all you need is larger pistons b/c the bore in the b20 is bigger than the b18b1. The two motors are the same, the b20 is a b18b1 with a bigger bore. The two motors use the same crank and rods.

Thanks for the info. You don't happen to know what results people have seen from the Crower B18 stroker kit? Just looking for a general idea of how much power it'd be making.

A B20 Vtec build is known for the torque you get...id almost be scared to see what a turbo b20 stroked would do.

Is it the torque youre after because it would probably be cheaper going the H22 route

Originally posted by dtmamg
Thanks for the info. You don't happen to know what results people have seen from the Crower B18 stroker kit? Just looking for a general idea of how much power it'd be making.

Sorry I have seen no info on results and I don't know of anybody who has it, I think it is b/c the r/s ratio will be even worse than the stock 1.54 , but i dunno. If you can get a hold of a b20 then sleeve it and boost around 20-25psi you would have a monster:eek:

sorry i dont know the results for a 2.2 stroker, but i saw a 2 liter gsr that make 240hp and 173tq at the wheels naturally aspirated, but it was fully built. so imma guessing you should make more for a 2.2 liter. like mastarolla said it would probably be cheaper if you got a h22.

Yeah, the main reason I wasn't looking to put a H22 in was because of the increased weight. I wanted to have a car that would still be decent through the turns. Kind of an all-around autocross/drag-strip car.

Originally posted by dtmamg
Yeah, the main reason I wasn't looking to put a H22 in was because of the increased weight. I wanted to have a car that would still be decent through the turns. Kind of an all-around autocross/drag-strip car.
Turbo b16 is your answer :bigthumb:

yea the b16 turbo is good balance, but i think he wants something with some torque.

go h22a and theres a stroker that gets it 2.6 i saw in a magazine it put down like 240 to the wheels and 189 lbs trq.

Originally posted by disbboi
yea the b16 turbo is good balance, but i think he wants something with some torque.

A turbo motor will produce all the torque he will need or want :bigthumb:

Originally posted by disbboi
yea the b16 turbo is good balance, but i think he wants something with some torque.

You'll get alot of torque from a turbo set up. No worries there...

Crower makes a 2.26 Liter kit for the B18/B20, so I'm thinking of going with that, maybe 8.5:1 compression pistons, VTEC head, and a turbo. It'll be a lot of money/time but it should work out well in the end.

Originally posted by dtmamg
Crower makes a 2.26 Liter kit for the B18/B20, so I'm thinking of going with that, maybe 8.5:1 compression pistons, VTEC head, and a turbo. It'll be a lot of money/time but it should work out well in the end.
Let us know how it turns out:bigthumb:

If you go w/ the H22 and upgrade the suspension u wont have trouble taking the turns at all. You get more bang for your buck if u go w/ the H22. Plus w/ a H22 you will have a lil bit more torque, especially if u stroke it. I haven't seen any kits for the H22 though, but check this out
http://www.crower.com/cat/import/honda/stroker.shtml
its a crower stroker kit for the B20. I would really make sure to get that vtec head on there, it will give u more HP than the stroker kit cuz the B20 isn't a vtec. The H22 is gonna be a lot cheaper though if u have a budget and u will get the vtec head and teh good tourque

If you go w/ the H22 and upgrade the suspension u wont have trouble taking the turns at all. You get more bang for your buck if u go w/ the H22. Plus w/ a H22 you will have a lil bit more torque, especially if u stroke it. I haven't seen any kits for the H22 though, but check this out
http://www.crower.com/cat/import/honda/stroker.shtml
its a crower stroker kit for the B20. I would really make sure to get that vtec head on there, it will give u more HP than the stroker kit cuz the B20 isn't a vtec. The H22 is gonna be a lot cheaper though if u have a budget and u will get the vtec head and teh good tourque

Ok you are new here so i will be easy on you this time :icon16:
Please do not bring up old dead posts!!! 6 months old is considered dead!
If you have any more questions about this than feel free to PM a mod they will explain it all to you.

Alright dude, sorry...i didn't think it was that big of a deal. Maybe someone else would wanna read it, who knows. so what if i waste my time replying to something old. it shouldn't matter to you